Surgery – Respiratory method or device – Means for mixing treating agent with respiratory gas
Patent
1993-10-14
1996-11-26
Lewis, Aaron J.
Surgery
Respiratory method or device
Means for mixing treating agent with respiratory gas
12820321, A61M 1500
Patent
active
055774970
ABSTRACT:
A dry powder medicine inhaler has an impeller non-concentrically disposed in a mixing chamber. A motor spins the impeller at high speed. A plunger introduces a dose of powdered medicine into the chamber so that all powder particles are available for intermixing disaggregation and comminution. An aperture receives a first stream of air and passes it towards the mouthpiece for inhalation by the user. A wall has at least one aperture for diverting a portion of a main air stream into the aerosolizing chamber to mix with the particles to form a fine, low-density, low velocity, dry mist of powdered medicine for inhalation by the user.
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Mecikalski Mark B.
Thueson David O.
Williams David R.
Dura Pharmaceuticals, Inc.
Lewis Aaron J.
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